#5BD9F6#5BD9F6

#5BD9F6 is a very light, moderate cyan. Relative luminance 0.585; OKLCH L 82.6% C 0.117 H 215.6°. Best body text is #000000 at 12.70:1 contrast (WCAG AA passes).

Color values

HEX	#5BD9F6
RGB	rgb(91, 217, 246)
HSL	hsl(191, 90%, 66%)
HSV	hsv(191, 63%, 96%)
CMYK	cmyk(63%, 11.8%, 0%, 3.5%)
CIE-LAB	lab(81.02, -26.30, -24.54)
CIE-LCH	lch(81.02, 35.98, 223.02°)
OKLab	oklab(82.59% -0.0953 -0.0682)
OKLCH	oklch(82.59% 0.117 215.6)
XYZ	xyz(45.7550, 58.4988, 96.0510)
Luminance	0.5850 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BD9F6 #F6785B

analogous

#5BF6C5 #5BD9F6 #5B8BF6

triadic

#5BD9F6 #F65BD9 #D9F65B

tetradic

#5BD9F6 #C55BF6 #F6785B #8BF65B

square

#5BD9F6 #C55BF6 #F6785B #8BF65B

split-complementary

#5BD9F6 #F65B8B #F6C55B

monochromatic

#0BA7CB #21CCF3 #5BD9F6 #95E6F9 #CFF4FC

Accessibility & contrast

On white

1.65

#5BD9F6 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.70

#5BD9F6 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BD9F6

12.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BD9F6	#FFFFFF	#000000	##000000
##5BD9F6	1.00	1.65	12.70	12.70
#FFFFFF	1.65	1.00	21.00	21.00
#000000	12.70	21.00	1.00	1.00
##000000	12.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5D3F8

Deuteranopia (green-blind)

#AEC2F6

Tritanopia (blue-blind)

#00E4E2

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #5bd9f6;
/* rgb */ color: rgb(91, 217, 246);
/* oklch */ color: oklch(82.6% 0.117 215.6);

Tailwind

colors: {
  custom: {
    50: '#99e5f9',
    500: '#5bd9f6',
    950: '#000000',
  },
}

SCSS

$custom: #5bd9f6;
$custom-light: #99e5f9;
$custom-dark: #000000;

JSON

{
  "hex": "#5bd9f6",
  "rgb": {
    "r": 91,
    "g": 217,
    "b": 246
  },
  "hsl": {
    "h": 191.226,
    "s": 89.595,
    "l": 66.078
  },
  "oklch": {
    "l": 0.82594,
    "c": 0.11721,
    "h": 215.6
  },
  "luminance": 0.58504
}

Semantic roles & 50–950 ramp

primary

#5BD9F6

secondary

#C74A2E

accent

#2B00E6

background

#FCFEFF

surface

#F5FCFF

border

#CFD5D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #5BD9F6

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →